1305605040002 has 8 divisors (see below), whose sum is σ = 1958414156796. Its totient is φ = 652800321072.

The previous prime is 1305605039989. The next prime is 1305605040023. The reversal of 1305605040002 is 2000405065031.

It can be written as a sum of positive squares in 2 ways, for example, as 1302403630441 + 3201409561 = 1141229^2 + 56581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214973 + ... + 1630160.

Almost surely, 2^{1305605040002} is an apocalyptic number.

1305605040002 is a deficient number, since it is larger than the sum of its proper divisors (652809116794).

1305605040002 is a wasteful number, since it uses less digits than its factorization.

1305605040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198932.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 1305605040002 in words is "one trillion, three hundred five billion, six hundred five million, forty thousand, two".